Pauli letter collection: letter to Ralph de Laer Kronig

Pauli writes about his impression of Jules Romain's book "Violation des frontières", and about Soal and Bateman's book "Modern Experiments in Telepathy". He thinks that many people wrongly prefer to declare invalid large parts of science rather than to admit the existence of ESP. For him the mixture of mystics and mathematics is still dominant, and parapsychology and biology also interest him.